Is it permissible for an orphaned, only girl, who has no relatives, to travel for work, study, or leisure, knowing that a woman's travel without a mahram is forbidden?

The basic rule concerning a woman traveling without a mahram (definition) is that it is impermissible, except in cases of necessity or dire need, in which case it becomes permissible for her. Some scholars have permitted her travel without a mahram, provided she is accompanied by a trustworthy group, for any permissible journey. Nevertheless, one must be cautious about being lenient regarding a woman traveling without a mahram, especially in a time where tribulations have become widespread. Therefore, she should not travel merely for amusement or to visit countries.